Cape Dorset weather in September 2025

Expect 37°F daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Cape Dorset in September. Check more long-term weather averages for Cape Dorset in September before you book your next holiday to Nunavut in 2025/2026.

  • 37°F maximum daytime temperature in September in Cape Dorset37
    37°F max day temperature
  • 3 hours of sunshine per day
  • 13 days with some rainfall in September in Cape Dorset13
    13 days with some rainfall
  • 30°F minimum night-time temperature in September in Cape Dorset30
    30°F min night temperature
  • 13 hours of daylight per day in September in Cape Dorset13
    13 hours of daylight per day
  • No heat & humidity in September in Cape Dorset0
    No heat & humidity
  • 1.6 inches monthly rainfall in September in Cape Dorset1.6
    1.6 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in September in Cape Dorset2
    2 (Low) UV index
  • 34°F sea temperature in September in Cape Dorset34
    34°F sea temperature

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Cape Dorset by month

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The September weather guide for Nunavut (Cape Dorset) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How cold is it in Cape Dorset in September?

Daytime temperatures usually reach 37°F in Cape Dorset in September, falling to 30°F at night.

How sunny is it in Cape Dorset in September?

There are normally 3 hours of bright sunshine each day in Cape Dorset in September - that's 24% of daylight hours.

How warm is the sea around Cape Dorset in September?

The average sea temperature around Cape Dorset in September is 34°F.

Does it rain in Cape Dorset in September?

There are usually 13 days with some rain in Cape Dorset in September and the average monthly rainfall is 1.6 inches. Rain may fall as snow in this month.

Cape Dorset September sunrise & sunset times

Browse the sunrise and sunset times for Cape Dorset in September 2025. Select a month to view Cape Dorset sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 04:49 19:21
Monday, 15th September 2025 05:30 18:31
Tuesday, 30th September 2025 06:13 17:37

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